A full virus scan is a comprehensive examination of your computer's system to detect and remove malware.
Here's a more detailed breakdown:
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What it checks: A full scan meticulously examines all files, folders, and running programs on your hard drives and other storage devices to which the user has access. This includes:
- Boot sectors (the part of your hard drive that starts your operating system)
- System files
- Installed programs
- Documents
- Archives (like ZIP files)
- Email databases
- Cookies
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How it works: The antivirus software compares the code of each file against a database of known malware signatures. It also looks for suspicious behavior that might indicate a new or unknown threat.
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Why it's important: Full scans are vital for ensuring that your system is free from malware, including hidden threats that may have evaded real-time protection.
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When to use it: You should perform a full scan:
- After installing a new antivirus program
- If you suspect your computer is infected
- On a regular schedule (e.g., weekly or monthly) as part of your overall security strategy
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Time Commitment: Because of its thorough nature, a full scan can take a considerable amount of time, potentially several hours, depending on the size of your hard drive and the speed of your computer. It's often best to schedule it for a time when you won't need to use your computer intensively.
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Differences from Quick Scan: Unlike a quick scan, which only checks the most common areas where malware is found, a full scan leaves no stone unturned.
In summary, a full virus scan is an essential security measure that thoroughly investigates your computer's files, processes, and boot records to identify and eliminate malware, providing a more robust defense against cyber threats than a quick scan.
